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# -*- coding: utf-8 -*-
# app.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging
import signal
import sys
import os
from functools import partial
from PySide import QtCore, QtGui
from leap.common.events import server as event_server
from leap.util import __version__ as VERSION
from leap.util import leap_argparse
from leap.util.leap_log_handler import LeapLogHandler
from leap.util.streamtologger import StreamToLogger
from leap.util.requirement_checker import check_requirements
from leap.gui import locale_rc
from leap.gui import twisted_main
from leap.gui.mainwindow import MainWindow
from leap.platform_init import IS_MAC
from leap.platform_init.locks import we_are_the_one_and_only
from leap.services.tx import leap_services
import codecs
codecs.register(lambda name: codecs.lookup('utf-8')
if name == 'cp65001' else None)
# pylint: avoid unused import
assert(locale_rc)
def sigint_handler(*args, **kwargs):
"""
Signal handler for SIGINT
"""
logger = kwargs.get('logger', None)
if logger:
logger.debug("SIGINT catched. shutting down...")
mainwindow = args[0]
mainwindow.quit()
def install_qtreactor(logger):
import qt4reactor
qt4reactor.install()
logger.debug("Qt4 reactor installed")
def add_logger_handlers(debug=False, logfile=None):
"""
Create the logger and attach the handlers.
:param debug: the level of the messages that we should log
:type debug: bool
:param logfile: the file name of where we should to save the logs
:type logfile: str
:return: the new logger with the attached handlers.
:rtype: logging.Logger
"""
# TODO: get severity from command line args
if debug:
level = logging.DEBUG
else:
level = logging.WARNING
# Create logger and formatter
logger = logging.getLogger(name='leap')
logger.setLevel(level)
log_format = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
formatter = logging.Formatter(log_format)
# Console handler
console = logging.StreamHandler()
console.setLevel(level)
console.setFormatter(formatter)
logger.addHandler(console)
logger.debug('Console handler plugged!')
# LEAP custom handler
leap_handler = LeapLogHandler()
leap_handler.setLevel(level)
logger.addHandler(leap_handler)
logger.debug('Leap handler plugged!')
# File handler
if logfile is not None:
logger.debug('Setting logfile to %s ', logfile)
fileh = logging.FileHandler(logfile)
fileh.setLevel(logging.DEBUG)
fileh.setFormatter(formatter)
logger.addHandler(fileh)
logger.debug('File handler plugged!')
return logger
def replace_stdout_stderr_with_logging(logger):
"""
Replace:
- the standard output
- the standard error
- the twisted log output
with a custom one that writes to the logger.
"""
sys.stdout = StreamToLogger(logger, logging.DEBUG)
sys.stderr = StreamToLogger(logger, logging.ERROR)
# Replace twisted's logger to use our custom output.
from twisted.python import log
log.startLogging(sys.stdout)
def main():
"""
Starts the main event loop and launches the main window.
"""
try:
event_server.ensure_server(event_server.SERVER_PORT)
except Exception as e:
# We don't even have logger configured in here
print "Could not ensure server: %r" % (e,)
_, opts = leap_argparse.init_leapc_args()
standalone = opts.standalone
bypass_checks = getattr(opts, 'danger', False)
debug = opts.debug
logfile = opts.log_file
openvpn_verb = opts.openvpn_verb
logger = add_logger_handlers(debug, logfile)
replace_stdout_stderr_with_logging(logger)
if not we_are_the_one_and_only():
# leap-client is already running
logger.warning("Tried to launch more than one instance "
"of leap-client. Raising the existing "
"one instead.")
sys.exit(1)
check_requirements()
logger.info('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~')
logger.info('LEAP client version %s', VERSION)
logger.info('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~')
logger.info('Starting app')
# We force the style if on KDE so that it doesn't load all the kde
# libs, which causes a compatibility issue in some systems.
# For more info, see issue #3194
if os.environ.get("KDE_SESSION_UID") is not None:
sys.argv.append("-style")
sys.argv.append("Cleanlooks")
app = QtGui.QApplication(sys.argv)
# install the qt4reactor.
install_qtreactor(logger)
# To test:
# $ LANG=es ./app.py
locale = QtCore.QLocale.system().name()
qtTranslator = QtCore.QTranslator()
if qtTranslator.load("qt_%s" % locale, ":/translations"):
app.installTranslator(qtTranslator)
appTranslator = QtCore.QTranslator()
if appTranslator.load("%s.qm" % locale[:2], ":/translations"):
app.installTranslator(appTranslator)
# Needed for initializing qsettings it will write
# .config/leap/leap.conf top level app settings in a platform
# independent way
app.setOrganizationName("leap")
app.setApplicationName("leap")
app.setOrganizationDomain("leap.se")
# XXX ---------------------------------------------------------
# In quarantine, looks like we don't need it anymore.
# This dummy timer ensures that control is given to the outside
# loop, so we can hook our sigint handler.
#timer = QtCore.QTimer()
#timer.start(500)
#timer.timeout.connect(lambda: None)
# XXX ---------------------------------------------------------
window = MainWindow(
lambda: twisted_main.quit(app),
standalone=standalone,
openvpn_verb=openvpn_verb,
bypass_checks=bypass_checks)
sigint_window = partial(sigint_handler, window, logger=logger)
signal.signal(signal.SIGINT, sigint_window)
if IS_MAC:
window.raise_()
# This was a good idea, but for this to work as intended we
# should centralize the start of all services in there.
#tx_app = leap_services()
#assert(tx_app)
# Run main loop
twisted_main.start(app)
if __name__ == "__main__":
main()
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